Turning Labels into Tabs (Horizontal)

This is what I like most, I spend the whole night to follow the instruction given by master Hoctro. I can't apply the original tabs hack because some problem with border color but with the help from him, it became an easy task. Thanks to Hoctro.

Pic. from Hoctro's place
*Noticed that horizontal label tabs under blog's description?

Applied: Hackablog, link